Manufacture of poly-V sheet metal pulleys and product

Details Manufacture of poly-V sheet metal pulleys and product Manufacture of poly-V sheet metal pulleys and product

1983-02-22

1985-11-05

Novosad, Stephen J.

Endless belt power transmission systems or components

Friction drive pulley or guide roll

Including plural, coaxial, circumferential belt-receiving...

72 83, 29159R, F16H 5544, B21D 5326

Patent

active

045511225

ABSTRACT:
A sheet steel poly-V-grooved pulley having a special cross-sectional contour is made optionally by any one of three different cold working manufacturing procedures. Special physical properties or characteristics are developed in the pulley by the manner in which the metal in the V-groove body and single and double walled terminal flanges are cold worked. The cold working involves forming in stages of manufacturing from a cup-shaped blank to the finished pulley product a stepped inner body wall surface equivalent to a tapered surface with improved substantially uniform torque transmitting strength in the grooved body from web wall to open end. Also involved in the cold working is an increase in pulley diameter in certain portions of the finished pulley and a decrease in diameter in other portions from the diameter of the side wall of the cup shaped starting blank.

REFERENCES:
patent: 1671994 (1928-06-01), Nelson
patent: 2247002 (1941-06-01), Rendleman
patent: 2869223 (1959-01-01), Killian et al.
patent: 3368376 (1968-02-01), Previte
patent: 3977264 (1976-08-01), Sproul
patent: 4050321 (1977-09-01), Kraft
patent: 4273547 (1981-06-01), Bytzeck

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